How to Bypass the BIS server For Request

I am in trouble since last 4 days. I am sending one HTTP request from Blackberry Application.When WIFI is connected I am getting exactly expected response but when I am sending request from BIS, I am getting unexpected response.

Even the request is not hit to Server. Seems like Response is getting from BIS server (It might be cache)

My Question is

1. Is there any ways to off the cache system on BIS for My Request.

2. Can I bypass the BIS Server For request.

Only thing I want to do is I want to send the request to the server directly. Not interested for BIS Cache response.